YourPlayGame's service is only open to gamers over the age of 18, but that limit could be a blessing in disguise. While many gamers are indeed under the age of 18, requiring that gamers be older may weed out 13-year old l33t h4x0rs that would otherwise cheat with aimbots or wall-hacks.
Since gamers will be playing for real money, it's imperative that YourPlayGames ensures a level playing field with no cheating. YourPlayGames will require that Return to Castle Wolfenstein players have the latest version of PunkBuster installed, but I have to wonder if that will be enough to keep the system exploit-free. With real money on the line, I can envision cheaters coming up with even more inventive ways to gain an unfair advantage.